Column-mold.



L. H. MEISTER.

COLUMN MOLD.

APPLICATION HLDMAR.22.1915. RENEWED MAR, 10,1915.

3. 9 g 53 G950 Patented Sept. 26, 1916.

GWMZ.

LOUIS H. MEISTEB, OF CHICiaGQ, ILLHKQZS.

COLUMN-MOLD.

i ,ioooos.

Specification of Letters Patent.

inept. 2 13,

Application filed March 22, 1925, Serial lilo. 18,118. Renewed March if), 1916. serial Ho. @3323.

'1 c all whom it may concern Be it known that I, LOUIS H. Mms'rna, a citizen of the lfnited States, residing at Chicago, in the county of (look and State of Illinois, have invented certain new and useful Improvements in (jolumn-lllolds, of which the following is a specification.

This invention relates to molds for forming concrete columns and posts, and its object is to provide a novel and improved sectional sheet metal mold of this kind which is adjustable as to height and diameter for columns of different dimensions? With the herein stated object in View, the invention consists ina combination and 'arrangement of parts to be hereinafter described and claimed, reference being had. to the accompanying drawing in which Figure 1 is an elevation of the mold, partly broken away; Fig. 2 is a horizontal section on the line of Fig. 1; Fig. 3 is an enlarged sectional detail on the line 33 of Fig. 2, and Fig. i is an enlarged cross-section on the line 4'i of Fig. 1.

Referring specifically to the drawing, 10 denotes theiwali of'the mold, the same be" ing cylindricai in shape and made of sheet metal. The wall is composed of several sections, their number deiending on the diam eter of the column to e molded. The curvature of the sections is such that when they are assembled they form a true circle. For columns of other cross-sections. the mold wall sections will be shaped accordinglv.

At the vertical meeting edges of the sections forming the mold wall it). on the outer face thereof. are mun-ed angle iron'strips 11 which are parallel, and so-locatcd that their outstanding flanges abut. Through these flanges pass bolts 12, whereby the wallsections are held assembled and prevented from collapsing inwar i.

The mold wall 1,0 is externally encircled, at intervals, by hoops 13. The outstanding flanges of the angle strips 11 are notched where the hoops cross the same, the latter seating in the notches. These notches are shown at 14. The inner edges of the hoops, where they cross the of the angle strips which are fastened to the mold wali, have recesses 15 to ciear said flanges. The hoops therefore encircle the outside of the mold ,wall in contact therewith, except at the'angle strips 11. The tunction of the hoops is to firmly hold the mold against bulging outward from the pressure of the concrete filling the same. The iHrOjgFS 13 are in owotall' also made sections inch connected by pins 16. The ends oil: sections overlap suiiicientiy to receive a wedge fastening l? which. is driventhrouggh alined apertures in said overlapping ends. These wedges firmly hold sections in en circling position on the mold wall .10, and

the notches 14 in the angle strips 11 preren.

the hoops from sliding down on said One end of each hoop section has an or l8, and to said section is welded or otherwise secured, opposite the oii'set, a tongue 15 The adjacent end of the next section fits between theoti'set and tong-gaze. The wedge 11' passes through-aimed apertures in the otiset and the tongue and the part thcrebetwcen, and the pivot b it} also passes through these parts.

bling' the parts through which the piv i and the wedge pass, a better hold and the wedge is prevented from loose.

A number of mold wall units it Wilt be employed according to the height of column to be molded, the units being fastened together in superimposed relation by a 20 overlapping the meeting edges thereof and teinporariiy secured to the units by bolts 21..

'here the upper end of the mold must flared to form a head for the column, a top section 22 is provided, the same having a flared upper portion '2 carr v'ing a top section'il slightly orerhipping the some. The part :23 carries lugs or ears having vertical slots 2?. By means of bolts 27 carricd by the part 'i-i andpassiiie through the slots 253. and win; nuts 2% serewed on said bolts, the part it is se 'i...i" to thpart 23. I

A mold constructed as hcreinlmfore described ran be easily and ouicltiy set up or taken down, it is strong and slorabie, and. simple in construction, and it eilcctuaiiy serves the purpose or which it is designated.

1 claim:

1. A mold comprising: an encircii composed or sectirms, strips smureo outer. faces of the sections at the meeting; edges thercoi, said outstanding; flanges, bolts pr e the flanges of adjacent strips, said he having notci'ies. hoops encircling"; the and seating in the aforesaid notch s. so.

hoops comprising" pirotally connec d no ed getting:

has, all- 4 means m1 locking the sections toand a wedge passing through said oflsetfihe 10 tongue and the part therebetween.

In testimony whereof I afiix my signature in presence oftwo Witnesses.

' LOUIS H. MEISTER.

Witnesses:

MABEL ME I sTER, H. G. BATCHELOR. 

